Remove ctags-vim plugin.

* It causes issues when using terminal vim because it sets updatetime to
  500. Anything below 1000 causes these issues.
* This updatetime setting specifically causes issues with the
  gitgutter-vim plugin.
* https://groups.google.com/forum/#!topic/vim_dev/HIOsqI19UkY

tat: create tmux session if nonexistent

Add Shift+Tab map for tab complete in insert mode

Feature parity with `<c-p>` `<c-n>` tab completion duo.

Set Vim's colorcolumn to 80 characters

* We have an 80 character formatting limit
* This makes it obvious where that limit is

Update vim settings

* Update colorscheme to solarized
* Set right margin to 80
* Turn off line wrap
* Add realitve line numbering for easy navigation

Updgrade Plugins

* Upgrade Vundle to new interface
* Add vim-ruby/vim-ruby

move set relativenumber before set number

Remove ctags-vim plugin.

* It causes issues when using terminal vim because it sets updatetime to
  500. Anything below 1000 causes these issues.
* This updatetime setting specifically causes issues with the
  gitgutter-vim plugin.
* https://groups.google.com/forum/#!topic/vim_dev/HIOsqI19UkY

Remove line setting color column

* This was added via Thoughtbot's dotfiles in last merge